Manchester United boss Sir Alex Ferguson admits victory over Arsenal left him bemused.

Robin van Persie and Patrice Evra struck for United in the 2-1 win.

Ferguson admitted it failed to live up to previous encounters between the two old rivals.

Asked for his verdict on the game, Ferguson told Sky Sports 2HD: "I think I need to sleep on it, I could not believe the chances we missed.

"We should have put it to bed a long, long time ago and you look at that scoreline 2-1 and you think it was a close game, but it wasn't a close game.

"I think there was a lack of urgency in our game throughout, far too casual. It was an unusual Manchester UnitedArsenal game really.

"I know there were a lot of bookings, but it didn't get anywhere near the Manchester United-Arsenal games of the past, nowhere near it."